Police in Colorado Springs said they were called Sunday morning to the Crown Plaza Hotel, where they found the body of Kimberly Walker.

Detectives spoke with the supervisor of Walker's boyfriend, 24-year-old Montrell Mayo, who said the soldier had told him over the phone he might have killed his girlfriend.

The supervisor told police that Mayo claimed Walker had threatened his career during an argument Thursday at the hotel, and the supervisor said Mayo admitted to hitting her with a glass.

The Army supervisor told police that he called Mayo back and spoke with the soldier's grandmother, who said Mayo was in Greenville, N.C., with her.

The supervisor called the hotel and asked them to check the room number provided by Mayo, and security said they found Walker unresponsive. Officers later found her pink Ford F-150 parked in the hotel's lot.

Investigators said Walker suffered blunt force trauma to the head, and they found bloody clothing and rose petals on the floor.

Mayo turned himself in to police in North Carolina.

Walker was from Cincinnati. Her twin sister serves in the U.S. Navy. Both women were featured on WLWT in April 2009, when they reunited after six years. You can see that story here.

Her twin sister, Kara Walker, has returned to Cincinnati on leave from her post in Bahrain.

"We've done everything together our whole life except I joined the Navy and left and she joined the Army right after," Kara Walker said.

Kimberly Walker, who had recently been promoted to sergeant, had served two tours in Iraq and was scheduled to go to Afghanistan this summer.

The family told Hamrick arrangements for Walker had just been completed. Services will be at St. Joseph Church at Ezzard Charles Dr. and Linn St. in Queensgate.